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authorLibravatar Junio C Hamano <gitster@pobox.com>2022-03-13 22:56:17 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2022-03-13 22:56:17 +0000
commitbde1e3e80a16a850da95af836ef85c5669c989a2 (patch)
treea3bfe2636b59654a069631b7da06aa9b5dc24a47 /builtin
parentMerge branch 'en/merge-ort-align-verbosity-with-recursive' (diff)
parentcheckout, clone: die if tree cannot be parsed (diff)
downloadtgif-bde1e3e80a16a850da95af836ef85c5669c989a2.tar.xz
Merge branch 'gc/parse-tree-indirect-errors'
Check the return value from parse_tree_indirect() to turn segfaults into calls to die(). * gc/parse-tree-indirect-errors: checkout, clone: die if tree cannot be parsed
Diffstat (limited to 'builtin')
-rw-r--r--builtin/checkout.c13
-rw-r--r--builtin/clone.c2
2 files changed, 12 insertions, 3 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 9244827ca0..1afc0773d5 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -738,6 +738,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
struct tree_desc trees[2];
struct tree *tree;
struct unpack_trees_options topts;
+ const struct object_id *old_commit_oid;
memset(&topts, 0, sizeof(topts));
topts.head_idx = -1;
@@ -765,9 +766,15 @@ static int merge_working_tree(const struct checkout_opts *opts,
&new_branch_info->commit->object.oid :
&new_branch_info->oid, NULL);
topts.preserve_ignored = !opts->overwrite_ignore;
- tree = parse_tree_indirect(old_branch_info->commit ?
- &old_branch_info->commit->object.oid :
- the_hash_algo->empty_tree);
+
+ old_commit_oid = old_branch_info->commit ?
+ &old_branch_info->commit->object.oid :
+ the_hash_algo->empty_tree;
+ tree = parse_tree_indirect(old_commit_oid);
+ if (!tree)
+ die(_("unable to parse commit %s"),
+ oid_to_hex(old_commit_oid));
+
init_tree_desc(&trees[0], tree->buffer, tree->size);
parse_tree(new_tree);
tree = new_tree;
diff --git a/builtin/clone.c b/builtin/clone.c
index a572cda503..0aea177660 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -700,6 +700,8 @@ static int checkout(int submodule_progress, int filter_submodules)
init_checkout_metadata(&opts.meta, head, &oid, NULL);
tree = parse_tree_indirect(&oid);
+ if (!tree)
+ die(_("unable to parse commit %s"), oid_to_hex(&oid));
parse_tree(tree);
init_tree_desc(&t, tree->buffer, tree->size);
if (unpack_trees(1, &t, &opts) < 0)